Process and apparatus for treating sheet metal



Jan. 20, 1931. w. E." WATKINS 1, 8

PROCESS AND APPARATUS FOR TREATING SHEET METAL Filed June 16 1926 20 Sheets-Shet 1 Jan. 20, 1931. w. E. WATKINS PROCESS AND APPARATUS FOR TREATING SHEET METAL 1926 2.0 Sheets-Sheet 2 Filed June 16 3 p 1% N\\ Q INVEN TOR IIIIII l 11 Jan. 20, 1931. w. E. WATKINS PROCESS AND APPARATUS FQR TREATING SHEET METAL 20 Sheets- Sheet 3 Filed June 16-,' 1926 INVENTOR 5 BY -;%W;,/m

' ATTORNEYS V Jan. 20, 1931. w wA K s 1,789,853

PROCESS AND APPARATUS FOR TREATING SHEET METAL Filed Jun 15, 1926 20 Sheets-Sheet ,4

R 'INVENTOR ATTORNEYS Jan. 20, 1931. w. E. WATKINS 1,789,853

PROCESS AND APPARATUS FOR TREATING SHEET METAL Filed June 16, 1926 20 Sheets-sheaf, s

Jan. 20, "I 931.

w. WATKINS SHEET METAL PROCESS AND APPARATUS FOR TREATING 2O Sheets-Sheet 6 Filed June 16, 1926 Ki Q I g )%Z%%INVENTOR Jan. 20,1931. w. E. WATKINS PROCESS AND APPARATUS FOR TREATING SHEET METAL Filed Jun 15, 1926 20 Sheets-Sheet 7 IIIIIII Jan. 20, 193]. w w s 1,789,853

PROCESS AND APPARATUS FOR TREATING S HEET METAL Filed June 16, 1926 2.0 Sheets-Sheet 8 ATTORNEY-9 w. E. WATKINS 1,789,853

PROCESS AND APPARATUS FOR TREATING SHEET ICE 'IFAL Jan. 20, 1931.

' Filed June 16,

20 Sheets-Sheet 9 y wmm mmw INVENTOR BY M d! ATTORNEYS Jan. 20, 1931; w. E. WATKINS PROCESS AND APiARATUS FOR TREATING SHEET METAL Filed June 16, 1926 20 Sheets-Sheet 10 QNN RN INVENTOR (ATTORNEYS Jan. 20, 1931 w. E. ATKINS 1,789,853 PROCESS AND APPARATUS FOR TREATING SHEET METAL F iled June 16, 1926 20 Sheets-Sheet 11 INVENTOR ATTORNEYS Jan. 20, 1931. w w s 1,789,853

PROCESS AND APPARATUS FOR TREATING SHEET METAL Filed June 16, 1926 20 Sheets-Sheet 12 INVENTOR Jan. 20, 1931. w, w s I 7 1,789,853

- PROCESS AND APPARATUS FOR TREATING SHEET- METAL Filed June 16, 1926 20 sheets-Sheet '13 INQVENTCSR BY am mm o fiNEYS Jan. 20, 1931.

w. E. YWATKINS PROCESS AND APPARATUS FOR TREATING SHEET METAL Filed June 16, 1926 20 Sheets-Sheet 14 INVENTOR BY 7 wwzw ATTORNEYS v Janw. E. WATKINS PROCESS AND APPARATUS FOR TREATING SHEET METAL Fil n 1 19 26 20 Sheets-Sheet l5 ooooooooodo INVENTOR M ATTORNEYS Jam 20, 1931.

w. E. WATKINS PROCESS AND APPARATUS FOR TREATING SHEET METAL Filed June 16, 1926 20 Sheets-Sheet 1s g INVENTOR I v ATTORNEYS Jan. 20, 1931.

w. E. WATKINS PROCESS AND APPARATUS FOR TREATING SHEET METAL Filed June, 16, 1926 20 Sheets-Sheet 17 TTORNEYS Jan. 20, 1931.

w. E. WATKINS PROCESSAND APPARATUS FOR TREATING SHEET METAL 1926 20 Sheets-Sheet l8 INVENTOR Filed June 16 NR 9am.

ATTORN EYS Jan; 20, 1931.

w. E. WATKINS PROCESS AND APPARATUS -FOR "TREATING SHEET Filed June 16, 1926 20 Sheets-Sheet 19 MM -Mm MVN -Lll I I ll IlIl llt I LLI INVENTOR ATTORN EYS Jan. 20,. 1931'. w. E. WA'II'KINS 9,

, PROCESS AND APPARATUS FOR TREATING SHEET METAL' Filed June 16. 1926 20 Sheets-Sheet 20 

